Gas-meter mechanism



3.1. POCOCKQ GAS M ETER MECHANISM. APPLICATION FILED IUNE9, l9l9.

, 1 344 714 Patented June 29, 1920.

PATENT OFFICE sYLvEs'rER J. rocooK, or HAMILTON, ONTARIO, CAN DA,

GAS-METER MncHAnIsM.

Specification of Letters Patent. Pat lt e d June 29, 1920.

Application filed June 9, 1919. Serial No. 302,903.

To all whom it may concern Be it known that I, SYLvns'rnn J. POGOOK, a subject of the King of Great Britain, re siding at Hamilton, in the county of entworth and Province of Ontario, Canada, have invented certain new and useful Improvements in Gas-Meter Mechanism, of which the following is a specification.

My invention relates to improvements in gas meters and more particularly to the fast and slow adjustment andregulating mechanism, and consists essentially of a tangent having spaced sides and a cross member, a grooved tangent wrist slidable in said tangent and centrally tapped to receivea screw adapted by turning to alter the longitudinal position of said tangent wrist in relation to the tangent, the outwardly projecting end of said screw being shaped to receive a key or wrench device.

The invention has for its primary object to provide means in an article of the class specified for the regulation and adjustment of the position of the tangent wrist along the tangent without taking down the meter, as was formerly necessary. in order to increase the space between the centers of'the tangent wrist and the crank shaft to cause the index to more slowly operate, or to decrease such space to cause the same to operate faster. I

A further object is to provide means to permit the insertion of a key or other implement into the interior of a meter from without whereby to rotate the screw, mentioned above, without taking down or dismantling the meter.

A still further object is to provide a device of the class described which will be simple, durable, efii'cient in operation, and inexpensive to manufacture.

These, together with other objects, may be attained by the construction, combination and arrangement of the parts as will be hereinafter more fully described, illustrated in the accompanying drawing, and pointed out in the claims hereunto appended.

Reference may now be had to the drawing, in which:

Figure 1 is a plan of the gallery of a meter having the topremoved displaying the important mechanism and embodying my improvement;

Fig. 2 is a cross sectional front view taken on the line XX in Fig. 1; and,

Fig. 3 is an enlargeddetailed plan View of the improved adjusting mechanism.

Similar reference characters refer to similar parts throughout the several views.

A indicates the left side of the meter box, and B the right. side. (l designates the table. The principal members of the gallery of the meter are indicated as follows: 2 the valve covers, 3 the valve seats, 4 the valve guides, 5the flag staffs, 6 the flag arms,7the short arms pivoted to the tangent wrist S, and to the free ends of the-flag arms 6. 7 is the axle. with worm gear 8' meshed with worm 9 rigid on crank shaft 10 journaled in bracket ll'and table C, and operating the valves through the intermediary of the valve arms or connecting rods 12.

The meter dial is indicated by D, the gas inlet by E, and the outlet by F.

The tangent is comprised of a pair of spaced parallel sides 13 rigidly connected to the crank shaft 10 and rotatable upon its axis. These two sides are connected at their free ends by an integral cross member 14:. The tangent wrist body 8" is horizontally grooved on opposed sides, and into these grooves fit the sides 13 of the tangent constituting guides for the same and permitting it to move longitudinally therein.

A screw 15, parallel with the sides 13, is threaded through the central portion of said tangent wrist body, and has a narrowed or neck portion formed, and journaled in the cross member 14, permitting the screw to rotate, but securing it against longitudinal movement.

It will be seen that by rotating the screw 15, the tangent wrist body 8" will move longitudinally in the tangent according to in which direction the screw is revolved. thus reducing or increasing that distance between the tangent wrist 8 and the axis of the tangent support 10, whereby the speed of the tangent, together with that of the other moving parts of the meter will be reduced. or accelerated, as the case may be.

In order to rotate the screw 15, its free end part 15' is shaped to receive a key,

wrench or other suitable and convenient instrument.

At a point nearest and most convenient to the end part of the screw 15, along its arc of travel, a port is located in the side of the meter box. This port is sealed by a concave convex cap 16 which may be chiseled off, or otherwise removed to permit the projection into theinterior of the box of the key for application to the screw 15. After the proper adjustment of the tangent, and the key withdrawn, the cap 16 may be replaced and soldered in position thereby resealing the box. Should the cap 16 become mutilated in its removal, a new cap can be readily utilized. c

Having now fully described my invention, what I claim and desire to secure by Letters Patent of the United States, is I 1. In a device of the class described, the combination with the crank shaft ofa meter, of a tangent bar rigid with the crank shaft and comprised of a pair of.spaced parallel sides and an end cross member, a tangent wrist body having opposed grooves into which fit said sides, said body being slidable between said sides, and means for altering and fixing the position of said body longi tudinally of the tangent.

2. In a device of the class described, the combination with the crank shaft of a meter, of a tangent bar rigid with the crank shaft and comprised of a pair of spaced parallel sides and an end cross member, a tangent wrist body having opposed grooves into which fit said sides, said body being slidable between said sides, a screw parallel with said sides, threaded through said body and rotatable in said end cross member, the free end of said screw being shaped to receive a key or wrench, and means to retain said screw from longitudinal movement.

3. In a device of the class described, the combination with the crank shaft of a meter, of a tangent bar rigid with the crank shaft, a tangent wrist body slidable along said tangent bar, a screw parallel with said tangent bar, threaded through said body and rotatable in a member rigid with said tangent bar, the free end of said screw being shaped to receive a key or wrench, and means to retain said screw from longitudinal movement.

In testimony whereof I have affixed my signature.

SYLVESTER J. POCOCK.

Witness H. G. HENDRY. 

